303531142 has 16 divisors (see below), whose sum is σ = 458362800. Its totient is φ = 150747520.

The previous prime is 303531133. The next prime is 303531149. The reversal of 303531142 is 241135303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (303531149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 234834 + ... + 236122.

It is an arithmetic number, because the mean of its divisors is an integer number (28647675).

Almost surely, 2^303531142 is an apocalyptic number.

303531142 is a deficient number, since it is larger than the sum of its proper divisors (154831658).

303531142 is a wasteful number, since it uses less digits than its factorization.

303531142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1991.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 303531142 is about 17422.1451606856. The cubic root of 303531142 is about 672.0492260685.

Adding to 303531142 its reverse (241135303), we get a palindrome (544666445).

The spelling of 303531142 in words is "three hundred three million, five hundred thirty-one thousand, one hundred forty-two".